公开(公告)号：US10995718B2

公开(公告)日：2021-05-04

申请号：US16096966

申请日：2017-04-20

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Adam Mercer ,  Ryan Williams ,  Andrew Male

IPC: F02M55/02 ,  F02M59/46

Abstract: A high pressure fuel pump includes a pressurizing assembly where a plunger arranged in a bore translates along a main axis. The pump also includes a fuel transfer assembly having an inlet valve assembly and an outlet valve assembly. The pressurizing assembly has a pressurizing body provided with the bore and the fuel transfer assembly has a fuel transfer body within which are arranged the inlet and the outlet valve assemblies. The pressurizing body and the fuel transfer body are distinct parts fixed to each other along a sealing area.

公开(公告)号：US10451047B2

公开(公告)日：2019-10-22

申请号：US14425939

申请日：2013-07-23

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Andrew Male ,  Anthony Thomas Harcombe

IPC: F04B9/00 ,  F02M59/02 ,  F04B19/22 ,  F04B7/02 ,  F04B7/00 ,  F04B53/10 ,  F02M59/34 ,  F02M59/36 ,  F04D15/00 ,  F02M63/00 ,  F02M59/46

Abstract: The present application relates to a pump unit for a fuel injection system. The pump unit has a low pressure fuel supply line and a high pressure fuel outlet. A pumping chamber having a plunger is operable to perform a pumping cycle comprising a pumping stroke and a filling stroke. The pump unit also includes an inlet valve having an inlet valve member movable between an open position for permitting the supply of fuel to the pumping chamber from the low pressure fuel supply line and a closed position for inhibiting the supply of fuel from the pumping chamber to the low pressure supply line. An outlet valve is provided in the high pressure fuel outlet. The pump unit also includes a means for latching the inlet valve member in its open position. The present application also relates to a method of operating a pump unit.